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<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>helloworld</title>
    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="../style.css">
</head>

<body>
    <!--[if lt IE 7]>
            <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
        <![endif]-->

    <div id="app">
        <input type="text" v-model.lazy="name" placeholder="your name">
        <h1>hello, {{ name }}</h1>
        <hr> click times: {{ counter }}
        <button @click="handleAdd()"> +1 </button>
        <button @click="handleAdd(10)"> +10 </button>
        <hr>

        <a href="http://www.google.com" @click="handleclick('禁止打开', $event)">open google</a>
    </div>

    <script src='https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js'></script>
    <script src="" async defer></script>

    <script>
        var app = new Vue({
            el: '#app',
            data: {
                name: '',
                counter: 0
            },
            methods: {
                handleAdd: function (count) {
                    count = count || 1
                    this.counter += count
                },
                handleclick: function (message, event) {
                    event.preventDefault()
                    window.alert(message)
                }
            }
        })
    </script>

</body>

</html>